Bob,I think it's a No. 4 based on what I can see of the hitch. I've got a very late 4A and it shares many of the same features as the No. 4. The No. 4 hitch was more like a "Y" shape rather than a straight hitch bar and a simple diagonal brace. I've seen some wierd stuff with oliver bottoms on JD plows and what not, but have never seen oliver wheels on a JD plow. It would be interesting to see what the land wheel looks like.Tyler B in IL

Tyler, What I look for to distinguish a 4 from a 4A is the support for the leveling crank. The 4 has it bolted to the furrow side beam and the 4A has it bolted to the front cross member. Early 4A plows had a one piece support, while later during/after 1934 plows had a two piece adjustable support. In his picture, I can't see where it is attached. There are other differences too, just where I start looking. Bob

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